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<?php |
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|
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namespace Money\Exchange; |
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|
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use Exchanger\Exception\Exception as ExchangerException; |
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use Money\Currency; |
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use Money\CurrencyPair; |
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use Money\Exception\UnresolvableCurrencyPairException; |
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use Money\Exchange; |
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use Swap\Swap; |
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|
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/** |
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* Provides a way to get exchange rate from a third-party source and return a currency pair. |
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* |
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* @author Márk Sági-Kazár <[email protected]> |
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*/ |
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final class SwapExchange implements Exchange |
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{ |
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/** |
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* @var Swap |
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*/ |
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private $swap; |
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|
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public function __construct(Swap $swap) |
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{ |
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$this->swap = $swap; |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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public function quote(Currency $baseCurrency, Currency $counterCurrency) |
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{ |
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try { |
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$rate = $this->swap->latest($baseCurrency->getCode().'/'.$counterCurrency->getCode()); |
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} catch (ExchangerException $e) { |
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throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency); |
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} |
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|
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return new CurrencyPair($baseCurrency, $counterCurrency, $rate->getValue()); |
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} |
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} |
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